Image Formation

Q.

Question 12
David is observing his image in a plane mirror. The distance between the mirror and his image is 4 m. If he moves 1 m towards the mirror, then the distance between David and his image will be
(i) 3 m
(ii) 5 m
(iii) 6 m
(iv) 8 m

Q. Differentiate between plane mirror and spherical mirror?

Q.

Question 13
The rear view mirror of a car is a plane mirror. A driver is reversing his car at a speed of 2 m/s. The driver sees in his rear view mirror the image of a truck parked behind his car. The speed at which the image of the truck appears to approach the driver will be
(i) 1 m/s
(ii) 2 m/s
(iii) 4 m/s
(iv) 8 m/s

Q.

What is an image of an object?

Q.

Question 3

If an object is placed at a distance of 0.5 m in front of a plane mirror, the distance between the object and the image formed by the mirror will be

(a) 2m

(b) 1m

(c) 0.5m

(d) 0.25m

Q.

Question 4
State the characteristics of the image formed by a plane mirror.

Q. In a pinhole camera, the image of height 6 cm is formed at a distance of 10 cm. If the object is situated at a distance of 5 cm, the height of the object is:

1. 3 cm
2. 6 cm
3. 1.5 cm
4. None of these

Q.

Plane mirror is also known as convergent mirror.

1. True

2. False

Q.

An object is situated at a distance of $18cm$from a plane mirror. What is the distance between the object and its image formed by the mirror?

Q.

The image of an object is formed:

1. Regular reflection

2. Irregular reflection

3. Diffused reflection

4. Either regular or diffused reflection

Q.

Explain the reason for using a silver glass as a mirror.

Q. If the distance between an object and its image from a plane mirror is 13 meters, how far should the object be kept to get the distance to 20 meters? [2 MARKS]

Q. Image formed on a rear view mirror is ______ in nature.

1. real
2. diminished
3. magnified
4. upside down

Q. In a pinhole camera, the image of height 6 cm is formed at a distance of 10 cm. If the object is situated at a distance of 5 cm, the height of the object is ___ cm.

Q. Choose the correct statement(s) regarding image formation in a plane mirror?

1. To get an enlarged image, we would require a significantly larger mirror.
2. To get a diminished image, we would require a significantly smaller mirror.
3. Size of the mirror does not affect the size of the image.
4. Only size of the object determines the size of the image.

Q. Shadow of an object is formed when the object:

1. Allows the light to pass through it
2. Bounces back light
3. Absorbs light
4. Bends light

Q. The image formed by a pinhole camera is:

1. Virtual and inverted
2. Real and erect
3. Virtual and erect
4. Real and inverted

Q. A real image is formed when two rays appear to meet at a point.

1. False
2. True

Q.

1) We are not able to see our face in a cardboard but , can see in plane mirror why?

2) A person uses a concave mirror while applying make-up on his/her face.

Q.

Question 24

You are given three mirrors of different types. How will you identify each one of them?

Q.

Which of the following is not the property of a good mirror?

1. The mirror should not transmit any light.

2. The mirror should have polished surfaces.

3. The mirror should absorb any light.

4. The mirror must reflect the whole light.

Q. A boy is observing his image in a plane mirror. The distance between the mirror and his image is $6m$. If he moves $2m$ towards the mirror, then the distance between the boy and his image will be:

1. 2 m
2. 4 m
3. 8 m
4. 6 m

Q. While making a plane mirror, silvering in some portion of the mirror was thicker than the rest of the mirror. What effect can be expected in the image formation for the faulty portion?

1. Brigher image
2. Duller image
3. No effect
4. Distorted image

Q. The type of material used to coat in silvered surface of the mirror.

1. None of the above
2. Translucent
3. Tranparent
4. Opaque

Q.

An image is said to be formed when:

1. incident rays appear to meet

2. reflected rays appear to meet

3. reflected rays meet at a point

4. incident rays meet at a point

Q. The image formed by a pinhole camera is:

1. Real and erect
2. Virtual and erect
3. Virtual and inverted
4. Real and inverted

Q. If you took a snap of a guy who looks like this using a pinhole camera:
How will the image on the screen look like?

1. 
2. 
3. 
4. 

Q. Image formed by a plane mirror is ____ in nature.

1. virtual
2. real
3. distorted
4. upside down

Q.

What is the minimum number of rays required to form the image of a point?

1. Infinite

2. Rays are not responsible for formation of image

3. Two

4. One

Q. To find the image of a point, the minimum number of rays that are required is ___